Location History:
- Fuchu, JP (1990)
- Wako, JP (2004 - 2007)
- Saitama, JP (2007)
Company Filing History:
9 out of 22,004 
6 out of 10,092 
1 out of 357 Years Active: 1990-2007
Title: Hiroshi Watabe: Innovator in Outboard Motor Technology
Introduction
Hiroshi Watabe is a prominent inventor based in Wako, Japan, known for his significant contributions to outboard motor technology. With a total of 15 patents to his name, Watabe has developed innovative systems that enhance the performance and usability of outboard motors.
Latest Patents
One of his latest inventions is the outboard motor steering system. This system features a steering wheel positioned near the seat of a boat, equipped with a steering angle sensor that outputs a signal indicative of the steering angle. The system includes a swivel shaft connected to a propeller, allowing for relative movement, and an electric motor that rotates the swivel shaft based on the detected steering angle. Additionally, it incorporates a manipulation load regulation mechanism, such as a hydraulic damper, which increases the manipulation load of the steering wheel. This design reduces the operator's load while improving the feel of steering wheel manipulation.
Another notable patent is the engine speed control system for outboard motors. This system implements overrev prevention control by comparing the detected engine speed with a desired speed. If the engine overrevs, the system drives an electric throttle motor to reduce the throttle opening, thereby lowering the engine speed to the desired level. This configuration effectively addresses the decline in thrust caused by the intake of air and exhaust gas by the propeller, enhancing power performance and steerability.
Career Highlights
Hiroshi Watabe has worked with renowned companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has significantly influenced his innovative approach to outboard motor technology.
Collaborations
Throughout his career, Watabe has collaborated with notable colleagues, including Hideaki Takada and Yoshinori Masubuchi. Their teamwork has contributed to the advancement of technology in the field of outboard motors.
Conclusion
Hiroshi Watabe's innovative contributions to outboard motor technology have made a lasting impact on the industry. His patents reflect a commitment to enhancing performance and usability, showcasing his expertise as an inventor.